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BE698862A - - Google Patents

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Publication number
BE698862A
BE698862A BE698862DA BE698862A BE 698862 A BE698862 A BE 698862A BE 698862D A BE698862D A BE 698862DA BE 698862 A BE698862 A BE 698862A
Authority
BE
Belgium
Prior art keywords
connection
pipe
nut
sleeve
cone
Prior art date
Application number
Other languages
French (fr)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of BE698862A publication Critical patent/BE698862A/fr

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
    • F16L19/06Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F16L19/065Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring
    • F16L19/0656Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring integral with one of the connecting parts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
    • F16L19/08Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts with metal rings which bite into the wall of the pipe
    • F16L19/10Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts with metal rings which bite into the wall of the pipe the profile of the ring being altered
    • F16L19/14Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts with metal rings which bite into the wall of the pipe the profile of the ring being altered the rings being integral with one of the connecting parts

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



   BREVET D'INVENTION RACCORD ETANCHE A ECROU PERCE POUR   TUYAUX ET     CABLES   
 EMI1.1 
 aaatcaraaaasaaaaasaaaas:aa3astaaacaaas-au^sa=caa-¯aaac-oa 
On connait de nombreux raccords destinés à relier d'une manière étanche des tuyaux et des câbles entr'eux ou à des pièces fixes, dans lesquelles un écrou percé au travers duquel on a engagé l'extrémité du tuyau ou du câble se visse sur le corps fileté du raccord. Le serrage de cet écrou amène la diminution du diamètre d'une pièce intermédiaire   déformable   formant couronne autour du tuyau ou du câble, ce qui entrai *ne   l'étanchéité   de la connexion.

   Cette pièce intermédiaire est par exemple un bourrage, un ressort annulaire qui comprime la paroi d'un tuyau flexible sur un téton intérieur, une bague   biconique   en cuivre recuit ou en matière plastique. 



   Ces raccords connus comportent donc trois   gibces :     @   l'écrou extérieur percé, le corps sur lequel l'écrou se visse et la pièce annulaire déformable. 



   La présente invention ramène de trois à deux le nombre de pièces nécessaires, tout en assurant l'étanchéité. 



   En effet, l'invention consiste à prévoir que le corps du raccord se prolonge par un fourreau entourant le tuyau ou le câble et dans lequel on a prévu des fentes longitudinales suivant génératri- ces et que l'on termine ledit fourreau par un cône destiné à coopérer avec l'intrados conique que présente l'écrou percé   au-delà.. de   son   filet.   



  Le serrage de l'écrou amène, par la coopération des surfaces coniques, une diminution du diamètre du fourreau. Dans le cadre de l'invention il est nécessaire, en vue de l'étanchéité, qu'existe au moins une section dans laquelle un contact circonférentiel complet est réalisé 

 <Desc/Clms Page number 2> 

 entre une matière ductile ou souple comprimée et un matériau plus dur. 



  Cette condition   entratne   que les raccorda suivant l'invention sont différents selon qu'ils servent à la connexion de tuyaux flexibles ou semi-rigides, plus mous que la matière du raccord, ou qu'ils ser- vont pour des tuyaux en matière dure   comme   le cuivre par exemple. 



  Dans ce dernier cas,   c'est   la matière du raccord qui doit être plus déformable que celle du tuyau. Le corps du raccord est alors exécuté avantageusement en matière plastique. 



   Une première application de l'invention est un raccord pour tuyau flexible ou semi-rigide illustré en perspective éclatée   à la   figure I.   L'âme   du raccord présente un porte-tuyau Il sur lequel on glisse le flexible 12. Le fourreau 13 solidaire lui aussi de   l'âme   du raccord entoure le flexible 12. Le fourreau 13 solidaire lui aussi de l'âme du raccord entoure le flexible 12. Des fentes 14 ont été ménagées dans ce fourreau. Celui-ci se termine par le cône 15 destiné à coopérer avec le   co@ne   correspondant 16 que l'on a prévu dans l'intrados de l'écrou. La coopération des cônes 15 et 16 amène la diminution du diamètre du fourreau 13 et la paroi du flexible s'applique d'une manière étanche sur la busette 11, dont la matière est plus dure que celle du flexible.

   Il est loiair de prévoir des cannelures ou des aspérités de retenue en saillie, soit à l'expérieur de la busette 11, soit   à   l'intérieur du fourreau 13, de manière à ce qu'elles s'impriment dans la paroi du flexible lors du serrage, avec pour effet de donner à l'assemblage une bonne résistance 4 l'arrachement. 



   La figure 2 également en perspective éclatée illustre une application de l'invention à un raccord pour tuyau dur, par exemple un tuyau de cuivre. 



   On remarque que la busette   11   de la figure 1 ne trouve pas d'équivalent dans la figure 2, car il n'y a aucun besoin de soutenir intérieurement le tube. 

 <Desc/Clms Page number 3> 

 



   Le fourreau à fentes 23 est conformé différemment du fourreau homologue 13 de la figure I, en ce sens qu'entre les   fentes 24   et le filet 28, on a prévu une partie de paroi plue mince 27 légèrement bombée vers l'intérieur, qui sous l'influence d'une diminution sensible du diamètre à l'endroit des fentes, diminue elle aussi quelque peu de diamètre, grâce à un état de forte compression de la   matière.   



   L'avantage de l'utilisation d'une matière plastique apparaît, car les f'o r c e s mises en jeu permettent de dépasser la limite élastique du matériau, donc d'engendrer des déformations plastiques et des contacts de surface favorables à l'étanchéité. 



   Le raccord de la figure 2 peut être également employé comme presse-étoupe pour câble électrique. Le conducteur métallique   situe à.   l'intérieur du câble assure la rigidité interne, tandis que le revêtement en caoutchouc ou matière souple peut être considère comme plus mou que la partie 27 du fourreau. 



  REVENDICATIONS 
 EMI3.1 
 a========m=.-.3..=-.=.=.- Raccord étanche à écrou percé pour tuyaux et câbles électriques caractérisé en ce qu'il est réalisé en deux pièces, la partie dé- formable donnant le serrage étanche ne formant   qu'une   seule pièce avec l'âme du raccord.



   <Desc / Clms Page number 1>
 



   PATENT OF INVENTION SEALED FITTING WITH DRILLED NUT FOR PIPES AND CABLES
 EMI1.1
 aaatcaraaaasaaaaasaaaas: aa3astaaacaaas-au ^ sa = caa-¯aaac-oa
We know many connectors intended to connect in a sealed manner pipes and cables between them or to fixed parts, in which a drilled nut through which the end of the pipe or cable has been engaged is screwed onto the threaded body of the fitting. The tightening of this nut causes the reduction in the diameter of a deformable intermediate part forming a ring around the pipe or cable, which entrai * do the sealing of the connection.

   This intermediate part is, for example, a packing, an annular spring which compresses the wall of a flexible pipe on an internal stud, a biconical ring made of annealed copper or of plastic.



   These known fittings therefore have three gibces: @ the drilled outer nut, the body onto which the nut is screwed and the deformable annular part.



   The present invention reduces from three to two the number of parts required, while ensuring the seal.



   In fact, the invention consists in providing that the body of the connector is extended by a sheath surrounding the pipe or the cable and in which longitudinal slots have been provided along the lines and that said sheath is terminated by a cone intended to cooperate with the conical intrados which the nut drilled beyond .. its thread.



  The tightening of the nut brings about, by the cooperation of the conical surfaces, a reduction in the diameter of the sleeve. In the context of the invention it is necessary, with a view to sealing, that there is at least one section in which full circumferential contact is made.

 <Desc / Clms Page number 2>

 between a compressed ductile or flexible material and a harder material.



  This condition entails that the connectors according to the invention are different depending on whether they are used for the connection of flexible or semi-rigid pipes, softer than the material of the coupling, or whether they are used for pipes made of hard material such as copper for example.



  In the latter case, it is the material of the fitting which must be more deformable than that of the pipe. The body of the connector is then advantageously made of plastic.



   A first application of the invention is a connector for a flexible or semi-rigid pipe illustrated in exploded perspective in FIG. I. The core of the connector has a pipe holder II on which the flexible 12 is slid. The sheath 13 secured to it. also the core of the connector surrounds the flexible 12. The sleeve 13 also integral with the core of the connector surrounds the flexible 12. Slots 14 have been formed in this sleeve. This ends with the cone 15 intended to cooperate with the corresponding co @ not 16 which is provided in the lower surface of the nut. The cooperation of the cones 15 and 16 leads to the reduction in the diameter of the sleeve 13 and the wall of the hose is applied in a sealed manner to the nozzle 11, the material of which is harder than that of the hose.

   It is lawful to provide protruding grooves or retaining roughness, either on the outside of the nozzle 11, or inside the sheath 13, so that they are imprinted on the wall of the hose during tightening, with the effect of giving the assembly a good resistance to tearing.



   FIG. 2 also in exploded perspective illustrates an application of the invention to a fitting for a hard pipe, for example a copper pipe.



   Note that the nozzle 11 of Figure 1 does not find an equivalent in Figure 2, because there is no need to internally support the tube.

 <Desc / Clms Page number 3>

 



   The slotted sheath 23 is shaped differently from the homologous sheath 13 of FIG. I, in that between the slits 24 and the thread 28, there is provided a thinner wall portion 27 slightly convex inward, which under the influence of a significant reduction in the diameter at the location of the slits, also decreases somewhat in diameter, thanks to a state of strong compression of the material.



   The advantage of using a plastic material appears, because the f'o r c e s involved make it possible to exceed the elastic limit of the material, and therefore to generate plastic deformations and surface contacts favorable to sealing.



   The connector in figure 2 can also be used as a cable gland for an electric cable. The metallic conductor is located at. the interior of the cable provides internal rigidity, while the rubber or flexible material coating can be considered softer than part 27 of the sheath.



  CLAIMS
 EMI3.1
 a ======== m = .-. 3 .. = -. =. = .- Watertight connection with drilled nut for pipes and electric cables characterized in that it is made in two parts, the joint part - formable giving the tight tightening forming only one part with the core of the fitting.

 

Claims (1)

Raccord suivant revendication I, caractérisé en ce que le corps du raccord se prolonge par un fourreau dans lequel on a prévu des fentes longitudinales suivant génératrices et que l'on termine par un cône destiné à coopérer avec un c8ne femile que l'on ménage à l'écrou percé au-delà du filet de celui-ci. Connection according to Claim I, characterized in that the body of the connection is extended by a sleeve in which longitudinal slots are provided along generators and which ends with a cone intended to cooperate with a female cone which is spared the nut drilled beyond the thread thereof. Raccord suivant revendications I et 2, caractérisé en ce que l'on ménage entre l'extrémité du fourreau à fentes et la partie filetée du corps du raccord une partie à paroi plus mince présentant un bom- bernent annulaire vers l'intérieur, de manière à réaliser à l'endroit du diamètre minimum le serrage étanche nécessaire. <Desc/Clms Page number 4> Connection according to claims I and 2, characterized in that between the end of the slotted sleeve and the threaded part of the body of the connection a thinner walled part is provided with an annular bend towards the inside, so to achieve the necessary tight tightening at the place of the minimum diameter. <Desc / Clms Page number 4> 4. Raccord suivant revendications I et 2, $caractérisé en ce que l'on prévoit des cannelures ou des aspérités dans les partie du raocord appliquées à serrage contre le tuyau , de manière à empêcher l'arrache- ment. 4. Coupling according to claims I and 2, characterized in that there are provided grooves or asperities in the part of the raocord applied by clamping against the pipe, so as to prevent tearing.
BE698862D 1967-05-23 1967-05-23 BE698862A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE698862 1967-05-23

Publications (1)

Publication Number Publication Date
BE698862A true BE698862A (en) 1967-11-03

Family

ID=3850856

Family Applications (1)

Application Number Title Priority Date Filing Date
BE698862D BE698862A (en) 1967-05-23 1967-05-23

Country Status (2)

Country Link
BE (1) BE698862A (en)
NL (1) NL6806604A (en)

Also Published As

Publication number Publication date
NL6806604A (en) 1968-11-25

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